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http://reply.papertrans.cn/2/120/11980/11980-32.png
Submitted on: 19 June 2008.
Revised on: 22 August 2008.
Accepted on: 11 September 2008.
___________________IEEE TRANSACTIONS ON ENERGY CONVERSION
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Submitted on: 04 May 2007.
Revised on: 29 August 2007.
Accepted on: 17 October 2007.
___________________IEEE TRANSACTIONS ON ENERGY CONVERSION
Submitted on: 01 May 2002.
Revised on: 04 June 2002.
Accepted on: 29 July 2002.
___________________IEEE TRANSACTIONS ON ENERGY CONVERSION